Corresponding Author

Competing Interests

No financial or industry conflicts. MP serves as a consultant for the Bill & Melinda Gates Foundation. BMGF had no involvement in this manuscript. NPP is an Academic Editor with PLOS ONE. MP is on the editorial boards of PLOS ONE and PLOS Medicine. The other authors have declared that no competing interests exist.

Author Contributions

Wrote the first draft of the manuscript: NPP MP. Contributed to the writing of the manuscript: CV CD NE. ICMJE criteria for authorship read and met: NPP CV CD NE MP. Agree with manuscript results and conclusions: NPP CV CD NE MP.